Flora and Fauna Changes During Conversion from Conventional to Organic Farming
Table 2.2.
Biomass of cereals, weed and catch crop in early July in organic fields. The values
given are least squares estimates of the mean dry mass (g/m2). Significant differences
within a column are indicated by different letters (p<0.05, pairwise t-tests with Tukey-
Kramer adjustment).
Crop
Field
Year
Biomass (g/m2) of
cereal
weed
catch crop
Barley
1
2000
360
a
23
a
0.36
a
Barley
3
2001
830
b
1.5
b
2.1
b
Wheat
2
2000
1300
c
0.85
c
0
c
Wheat
2
2001
1100
d
3.8
d
0.77
d
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